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Analysis and comparison of retinal vascular parameters under different glucose metabolic status based on deep learning

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International Journal of Ophthalmology(English edition) 2024年第9期17卷 1581-1591页

作者： Yan Jiang Di Gong Xiao-Hong Chen Lin Yang jing-jing xu Qi-Jie Wei Bin-Bin Chen Yong-Jiang Cai Wen-Qun Xi Zhe Zhang Departments of Laboratory Medicine the Second Affiliated HospitalZhejiang University School of MedicineHangzhou 310009Zhejiang ProvinceChina Shenzhen Eye Hospital Jinan UniversityShenzhen 518040Guangdong ProvinceChina Center of Health Management Peking University Shenzhen HospitalShenzhen 518036Guangdong ProvinceChina Visionary Intelligence Ltd. Beijing 100080China Ophthalmology Center the Second Affiliated HospitalZhejiang University School of MedicineHangzhou 310009Zhejiang ProvinceChina

AIM:To develop a deep learning-based model for automatic retinal vascular segmentation,analyzing and comparing parameters under diverse glucose metabolic status(normal,prediabetes,diabetes)and to assess the potential of artificial intelligence(AI)in image segmentation and retinal vascular parameters for predicting prediabetes and ***:Retinal fundus photos from 200 normal individuals,200 prediabetic patients,and 200 diabetic patients(600 eyes in total)were *** U-Net network served as the foundational architecture for retinal arteryvein *** automatic segmentation and evaluation system for retinal vascular parameters was trained,encompassing 26 ***:Significant differences were found in retinal vascular parameters across normal,prediabetes,and diabetes groups,including artery diameter(P=0.008),fractal dimension(P=0.000),vein curvature(P=0.003),C-zone artery branching vessel count(P=0.049),C-zone vein branching vessel count(P=0.041),artery branching angle(P=0.005),vein branching angle(P=0.001),artery angle asymmetry degree(P=0.003),vessel length density(P=0.000),and vessel area density(P=0.000),totaling 10 ***:The deep learning-based model facilitates retinal vascular parameter identification and quantification,revealing significant *** parameters exhibit potential as biomarkers for prediabetes and diabetes.

关键词： deep learning retinal vascular parameters segmentation model diabetes prediabetes

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Effects of three-dimensional quality assessment nursing intervention on efficacy and disease management of patients undergoing esophageal cancer surgery

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World Journal of Gastrointestinal Surgery 2024年第9期16卷 2979-2985页

作者： Hai-Yan Wu Jie Jin Chen Chen jing-jing xu Qi Jiang Dong-Mei Lu Department of Cardiothoracic Surgery Huai'an First People's HospitalHuai'an 223300Jiangsu ProvinceChina

BACKGROUND Esophageal cancer is one of the most common malignant *** three-dimensional quality structure model is a quality assessment theory that includes three dimensions:Structure,process,and *** To investigate the effects of nursing interventions with three-dimensional quality assessment on the efficacy and disease management ability of patients undergoing esophageal cancer *** In this prospective study,the control group received routine nursing,and the intervention group additionally received a three-dimensional quality assessment intervention based on the above routine ***-efficacy and patient disease management abilities were evaluated using the General Self-Efficacy Scale(GSES)and Exercise of Self-Care Agency scale,*** SPSS Statistics for Windows,version 17.0,was used for the data *** This study recruited 112 patients who were assigned to the control and experi-mental groups(n=56 per group).Before the intervention,there was no significant difference in GSES scores between the two groups(P>0.05).After the inter-vention,the GSES scores of both groups increased,with the experimental group showing higher values(P0.05).At the time of discharge and three months after discharge,the scores for positive attitudes,self-stress reduction,and total score of health promotion in the experimental group were higher than those in the control group(P0.05).CONCLUSION The implementation of a three-dimensional quality structure model for postoperative patients with esophageal cancer can effectively improve their self-management ability and self-efficacy of postoperative patients.

关键词： Esophageal cancer Three-dimensional quality structure model Self-efficacy Disease management ability

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Advances in the function of traditional medicine for vitiligo treatment

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Traditional Medicine Research 2024年第3期9卷 43-51页

作者： Jun Liu Jia-Yi Li jing-jing xu Ling-Jun Li Wang Cheng Sheng-Tao Yuan Wei Zhang Hong-Yang Li Institute of Dermatology Chinese Academy of Medical Sciences and Peking Union Medical CollegeNanjing 210042China Jiangsu Center for Pharmacodynamics Research and Evaluation China Pharmaceutical UniversityNanjing 210009China School of Basic Medicine and Clinical Pharmacy China Pharmaceutical UniversityNanjing 210042China Department of Dermatology Zhongda Hospital Southeast UniversityNanjing 210009China

Vitiligo has a significant impact on a substantial number of individuals *** Chinese medicine has a long history of serving as a therapeutic treatment for ***,given the increasing volume of research on the utilization of traditional Chinese medicine for vitiligo treatment,it is imperative to conduct a comprehensive review that elucidates the efficacy of Chinese traditional medicine and other active ingredients in the treatment of *** paper presents a comprehensive overview of the clinical preparations used to treat vitiligo,while also highlighting the potential monomers and extracts derived from traditional Chinese medicine for vitiligo treatment.A thorough analysis of the pharmacological effects of traditional Chinese medicine on vitiligo treatment will provide valuable insights and reliable information for the development of new treatment strategies.

关键词： vitiligo traditional Chinese medicine melanogenesis

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An electromagnetic view of relay time in propagation of neural signals

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Chinese Physics B 2021年第2期30卷 589-594页

作者： jing-jing xu San-Jin xu Fan Wang Sheng-Yong xu School of Microelectronics Shandong UniversityJi'nan 250100China Department of Electronics School of Electronics Engineering and Computer SciencePeking UniversityBeijing 100871China

We review the experimental and computational data about the propagation of neural signals in myelinated axons in mice,cats,rabbits,and frogs published in the past five *** contrast to the natural assumption that neural signals occur one by one in time and in space,we figure out that neural signals are highly overlapped in time between neighboring *** phenomenon was occasionally illustrated in some early reports,but seemed to have been overlooked for some *** shift in time between two successive neural signals from neighboring nodes,defined as relay timeτ,was calculated to be only 16.3μs-87.0μs,i.e.,0.8%-4.4%of the average duration of an action potential peak(roughly 2 ms).We present a clearer picture of the exact physical process about how the information transmits along a myelinated axon,rather than a whole action potential peak,what is transmitted is only a rising electric field caused by transmembrane ion *** in the paper,τrepresents the waiting time until the neighboring node senses an attenuated electric field reaching the threshold to trigger the open *** mechanisms addressed in this work have the potential to be universal,and may hold clues to revealing the exact triggering processes of voltage-gated ion channels and various brain functions.

关键词： neural signal relay propagation velocity electromagnetic field model ion channels

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Red-blood-cell like nitrogen-doped carbons with highly catalytic activity towards oxygen reduction reaction

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Chinese Chemical Letters 2017年第4期28卷 748-754页

作者： jing-jing xu Chun-Hui Xiao Shu-Jiang Ding Department of Applied Chemistry School of Science Xi'an Jiaotong University Xi'an 710049 China

A highly active nitrogen-doped catalyst with a unique red-blood-cell（RBC） like structure is reported for oxygen reduction reaction（ORR）.The catalyst Fe,N-C@carbon-900 was prepared by pyrolysis of the polyaniline（PANl） and polystyrene（PS） composites with adsorption of ferric ion on the shell of sphere structure at 900℃.Fe,N-C@carbon-900 with a unique RBC-like structure provides plenty of catalytic sites combining the electrical conductivity of the carbon sphere with the catalytic activity of the nitrogen-doped *** four-electron reduction pathway is selected for the catalyst Fe,N-C@*** catalyst exhibit the ORR E_（onset） at 0.87 V（potentials is versus to reversible hydrogen electrode（RHE））,E_（1/2） at 0.78 V and high diffusion-limiting current density（5.20mA/cm^2）.Furthermore,this work indicates that both N and Fe accounted for high activity of the catalyst Fe,N-C@carbon-900 toward the oxygen reduction *** is concluded that Fe and N exhibit synergistically promotion in the ORR activity for the catalyst Fe,N-C@*** also provide a rational design of electrocatalysts with high ORR activity to further clarify the essential ORR sites of heteroatom doped carbon materials for fuel cells and metal-air battery applications.

关键词： Nitrogen-doped carbon Red-blood-cell like structure ORR PANI Electrocatalysts Four-electronpathway

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Discrimination of industrial products by on-line near infrared spectroscopy with an improved dendrogram

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Chinese Chemical Letters 2011年第10期22卷 1241-1244页

作者： jing jing Liu Heng xu Wen Sheng Cai xue Guang Shao Research Center for Analytical Sciences College of Chemistry Nankai University Tianjin 300071 China

Near infrared（NIR） spectroscopy technique has shown great power and gained wide acceptance for analyzing complicated *** present work is to distinguish different brands of tobacco products by using on-line NIR spectroscopy and pattern recognition ***,since each brand contains a large number of samples,an improved dendrogram was proposed to show the classification of different *** results suggest that NIR spectroscopy combined with principal component analysis （PCA） and hierarchical cluster analysis（HCA） performs well in discrimination of the different brands,and the improved dendrogram could provide more information about the difference of the brands.

关键词： Near infrared spectroscopy Principal component analysis Hierarchical cluster analysis Tobacco products

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Dual Z-scheme Bi_(3)TaO_(7)/Bi_(2)S_(3)/SnS_(2)photocatalyst with high performance for Cr(Ⅵ)reduction and TC degradation under visible light irradiation

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Rare Metals 2022年第7期41卷 2417-2428页

作者： jing-jing xu Hao-Yu Gu Min-Dong Chen xue-Ping Li Hong-Wen Zhao Hong-Bin Yang Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Nanjing 210044China Collaborative Innovation Center of Atmospheric Environment and Equipment Technology Nanjing 210044China Jiangsu Engineering Technology Research Center of Environmental Cleaning Materials Nanjing 210044China School of Environmental Science and Engineering Nanjing University of Information Science and TechnologyNanjing 210044China Nanyang Technological University Singapore 639798Singapore

Ternary direct dual Z-scheme Bi_(3)T_(a)O_(7)/Bi_(2)S_(3)/SnS_(2) photocatalyst was successfully prepared by hydrothermal *** composite photocatalysts exhibited high photocatalytic performance on both Cr(Ⅵ)reduction and tetracycline(TC)degradation under the irradiation of visible *** results manifested that the photogenerated charge transfer efficiency was improved after forming the dual Z-scheme *** a result,the composite catalysts exhibited higher photocat-alytic degradation efficiency than the corresponding single *** apparent rate constant(k)value of the best sample BBS-3 for TC degradation was 0.0403 min^(-1),which was 40 times,8 times,and 18 times higher than that of single *** the k value of BBS-3 for the Cr(Ⅵ)reduction was 0.0249 min^(-1),it was about 23 times,7 times,and 18 times that of single *** experiments indicated that the BBS-3 had good photocat-alytic ***,the possible mechanism on Cr(Ⅵ)reduction and TC degradation was proposed based on the experimental results.

关键词： Photocatalysis Dual Z-scheme Heterojunction Heavy metal Organic pollutant

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General and specialized tyrosine metabolism pathways in plants

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aBIOTECH 2020年第2期1卷 97-105页

作者： jing-jing xu Xin Fang Chen-Yi Li Lei Yang Xiao-Ya Chen Shanghai Key Laboratory of Plant Functional Genomics and Resources Plant Science Research CenterShanghai Chenshan Botanical GardenShanghai 201602People’s Republic of China State Key Laboratory of Plant Molecular Genetics CAS Center for Excellence in Molecular Plant Sciences/Shanghai Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032People’s Republic of China University of Chinese Academy of Sciences Shanghai 200032People’s Republic of China State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of BotanyChinese Academy of Sciences KunmingKunming 650201YunnanPeople’s Republic of China

The tyrosine metabolism pathway serves as a starting point for the production of a variety of structurally diverse natural compounds in plants,such as tocopherols,plastoquinone,ubiquinone,betalains,salidroside,benzylisoquinoline alkaloids,and so *** these,tyrosine-derived metabolites,tocopherols,plastoquinone,and ubiquinone are essential to plant *** addition,this pathway provides us essential micronutrients(e.g.,vitamin E and ubiquinone)and medicine(e.g.,morphine,salidroside,and salvianolic acid B).However,our knowledge of the plant tyrosine metabolism pathway remains rudimentary,and genes encoding the pathway enzymes have not been fully *** this review,we summarize and discuss recent advances in the tyrosine metabolism pathway,key enzymes,and important tyrosine-derived metabolites in plants.

关键词： Tyrosine Tyrosine-derived metabolites Secondary metabolism Plants

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Challenges and prospects for room temperature solid-state sodiumsulfur batteries

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Nano Research 2024年第3期17卷 1402-1426页

作者： Yashuang Qiu jing xu Research Center of Grid Energy Storage and Battery Application School of Electrical and Information EngineeringZhengzhou UniversityZhengzhou 450001China

Room temperature sodium-sulfur(Na-S)batteries,known for their high energy density and low cost,are one of the most promising next-generation energy storage ***,the polysulfide shuttling and uncontrollable Na dendrite growth as well as safety issues caused by the use of organic liquid electrolytes in Na-S cells,have severely hindered their ***-state electrolytes instead of liquid electrolytes are considered to be the most direct and effective solution to solve the above ***,its practical application is still greatly challenged due to the poor interfacial compatibility between the all-solid-state electrolytes and the anode/cathode,ionic conductivity,and the shuttle effect caused by the presence of liquid phase in the quasi-solid-state *** paper presents a comprehensive review of solid-state Na-S batteries from the perspective of regulating interfacial compatibility and improving ionic conductivity as well as suppressing polysulfide *** to different components,solid-state electrolytes were divided into five categories:solid inorganic electrolytes,solid polymer electrolytes,polymer/inorganic solid hybrid electrolytes,gel polymer electrolytes,and liquid–solid inorganic hybrid ***,the prospect of developing high performance solid-state electrolytes to improve the cycling stability of room temperature Na-S cells is envisaged.

关键词： sodium-sulfur batteries solid-state electrolytes ionic conductivity polysulfide shuttling interfacial compatibility

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A stable staggered-grid finite-difference scheme for acoustic modeling beyond conventional stability limit

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Petroleum Science 2024年第1期21卷 182-194页

作者： jing-Yi xu Yang Liu National Key Laboratory of Petroleum Resources and Engineering China University of Petroleum(Beijing)Beijing 102249China China University of Petroleum(Beijing) Karamay CampusKaramay 834000XinjiangChina

Staggered-grid finite-difference(SGFD)schemes have been widely used in acoustic wave modeling for geophysical *** improved methods are proposed to enhance the accuracy of numerical ***,these methods are inevitably limited by the maximum Courant-Friedrichs-Lewy(CFL)numbers,making them unstable when modeling with large time sampling intervals or small grid *** solve this problem,we extend a stable SGFD scheme by controlling SGFD dispersion relations and maximizing the maximum CFL ***,to improve modeling stability,we minimize the error between the FD dispersion relation and the exact relation in the given wave-number region,and make the FD dispersion approach a given function outside the given wave-number area,thus breaking the conventional limits of the maximum CFL ***,to obtain high modeling accuracy,we use the SGFD scheme based on the Remez algorithm to compute the FD *** addition,the hybrid absorbing boundary condition is adopted to suppress boundary reflections and we find a suitable weighting coefficient for the proposed *** derivation and numerical modeling demonstrate that the proposed scheme can maintain high accuracy in the modeling process and the value of the maximum CFL number of the proposed scheme can exceed that of the conventional SGFD scheme when adopting a small maximum effective wavenumber,indicating that the proposed scheme improves stability during the modeling.

关键词： Acoustic wave Staggered-grid finite-difference(SGFD) modeling Courant-friedrichs-lewy(CFL)number Stability

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